| Reference number | AP/13/3/1 |
| Level | Item |
| Title | Unpublished letter, regarding a system of communicating signals from J Henry Doyle to the President of the Royal Society of Arts |
| Date | 8 May 1828 |
| Description | Doyle introduces his system of communicating signals using flags corresponding to numbers for confidential communication. He also developed a system using laterns for signalling at night. Doyle envisions possible use of the signalling system in the Navy.
Subject: Communication
Written by Doyle in Wexford, Ireland and erroneously addressed to the President of the Royal Society of Arts. |
| Extent | 6p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Access status | Open |
| Related records in the catalogue | AP/13/3 |
Fellows associated with this archive
| Code | Name | Dates |
| NA8707 | Gilbert; Davies (1767-1839) | 1767-1839 |